I could familiarize you could familiarize he could familiarize we could familiarize you could familiarize they could familiarize
V-ing form
I could be familiarizing you could be familiarizing he could be familiarizing we could be familiarizing you could be familiarizing they could be familiarizing
Perfect
I could have familiarized you could have familiarized he could have familiarized we could have familiarized you could have familiarized they could have familiarized
V-ing perfect
I could have been familiarizing you could have been familiarizing he could have been familiarizing we could have been familiarizing you could have been familiarizing they could have been familiarizing
Negation
Simple form
I couldn't familiarize you couldn't familiarize he couldn't familiarize we couldn't familiarize you couldn't familiarize they couldn't familiarize
V-ing form
I couldn't be familiarizing you couldn't be familiarizing he couldn't be familiarizing we couldn't be familiarizing you couldn't be familiarizing they couldn't be familiarizing
Perfect
I couldn't have familiarized you couldn't have familiarized he couldn't have familiarized we couldn't have familiarized you couldn't have familiarized they couldn't have familiarized
V-ing perfect
I couldn't have been familiarizing you couldn't have been familiarizing he couldn't have been familiarizing we couldn't have been familiarizing you couldn't have been familiarizing they couldn't have been familiarizing
Interrogative form
Simple form
could I familiarize? could you familiarize? could he familiarize? could we familiarize? could you familiarize? could they familiarize?
V-ing form
could I be familiarizing? could you be familiarizing? could he be familiarizing? could we be familiarizing? could you be familiarizing? could they be familiarizing?
Perfect
could I have familiarized? could you have familiarized? could he have familiarized? could we have familiarized? could you have familiarized? could they have familiarized?
V-ing perfect
could I have been familiarizing? could you have been familiarizing? could he have been familiarizing? could we have been familiarizing? could you have been familiarizing? could they have been familiarizing?
Interro-negative form
Simple form
couldn't I familiarize? couldn't you familiarize? couldn't he familiarize? couldn't we familiarize? couldn't you familiarize? couldn't they familiarize?
V-ing form
couldn't I be familiarizing? couldn't you be familiarizing? couldn't he be familiarizing? couldn't we be familiarizing? couldn't you be familiarizing? couldn't they be familiarizing?
Perfect
couldn't I have familiarized? couldn't you have familiarized? couldn't he have familiarized? couldn't we have familiarized? couldn't you have familiarized? couldn't they have familiarized?
V-ing perfect
couldn't I have been familiarizing? couldn't you have been familiarizing? couldn't he have been familiarizing? couldn't we have been familiarizing? couldn't you have been familiarizing? couldn't they have been familiarizing?